Injection unit for injection molding machines

Details Injection unit for injection molding machines Injection unit for injection molding machines

1998-04-03

2000-01-18

Heitbrink, Jill L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Including feeder to supply stock to charger

366 78, 366100, B29C 4550

Patent

active

060152842

ABSTRACT:
An injection unit for injection moulding machines comprising a plasticizing cylinder and a plasticizing screw which is arranged rotatably therein and axially displaceably by a crank drive, wherein there is provided a drive motor (1) which selectively either rotates the plasticizing screw (2) or advances same by means of a crank (5) which is pivotably connected to a thrust rod (4), and wherein there is provided a further drive motor (8) which by way of a crank (10) drives a thrust rod (9) arranged in mirror image relationship in plan view in relation to the first thrust rod (4).

REFERENCES:
patent: 3890308 (1975-06-01), Collins
patent: 4879077 (1989-11-01), Shimizu et al.
patent: 5158783 (1992-10-01), Inaba et al.
patent: 5348463 (1994-09-01), Keitel et al.
patent: 5879597 (1999-03-01), Urbanck

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